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Effects of Different Irrigation Levels and Fertilizer Rates on Yield, Yield Components and Water Productivity of Onion at Adami Tulu Agricultural Research Center
Anbese Ambomsa,
Dulo Husen,
Zelalem Shelemew,
Ayub Jalde
Issue:
Volume 12, Issue 3, June 2023
Pages:
57-63
Received:
10 February 2023
Accepted:
23 April 2023
Published:
18 May 2023
Abstract: Today’s agriculture sector faces a complex series of challenges to cope with the demands for sustainable management and production, which entails an increase in food production to ensure food security while using less water per unit of output and reducing nitrogen (N) fertilizer losses through leaching. The experiment was conducted at Adami Tulu Agricultural Research Center on-station to study the effect of different irrigation levels and N-fertilizer rates on plant height, bulb yield, bulb diameter, and bulb height and water productivity of onion. The treatments of the experiment had factorial combinations of three levels of watering and four N-fertilizer amounts. Results indicated that the highest plant height (53.07 cm), bulb height (6.13 cm), bulb diameter (6.21 cm), marketable bulb yield (241.39 qt/ha) and total bulb yield (252.89 qt/ha) were obtained from full irrigation and fully N-fertilized compared to the deficit conditions. The highest water productivity was recorded from 60% ETc irrigation level and 150 Kg/ha N-fertilizer application rate, but the reduction in water productivity with 80% ETc and 150 Kg/ha N-fertilizer application rate was not significant. Hence, if water is not limiting factor, 100% ETc irrigation level and 150 Kg/ha N-fertilizer could be suggested to apply. But if water becomes 232 limiting factor, 80% ETc irrigation level with 150 Kg/ha N-fertilizer would be more appropriate for growing onion in the study area. Therefore these can be used as one package of onion production technology and all growers better to apply.
Abstract: Today’s agriculture sector faces a complex series of challenges to cope with the demands for sustainable management and production, which entails an increase in food production to ensure food security while using less water per unit of output and reducing nitrogen (N) fertilizer losses through leaching. The experiment was conducted at Adami Tulu Ag...
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Floristic Diversity of the Trees of Street Alignment and Concern of the Populations in Brazzaville
Kimpouni Victor,
Bileri-Bakala Ghislain,
Mamboueni Joserald Chaiph,
Mahoungou Ange Piccard,
Massamba-Makanda Charmes-Maidet
Issue:
Volume 12, Issue 3, June 2023
Pages:
64-78
Received:
7 February 2023
Accepted:
14 March 2023
Published:
5 June 2023
Abstract: The study of the floristic diversity of street trees and the concerns of the population is conducted in Brazzaville. The theme is oriented on the place and the interest of the trees of alignment in the urban development. The methodology is based on the systematic counting of woody trees with a diameter at breast height (dbh) ≥ 10 cm, of 32 arteries selected according to the number of trees in the line and the degree of urban development. The concern of the populations is informed via a questionnaire whose informants are selected following a non-probability sampling for convenience. The floristic inventory lists 1867 woody trees organized into 42 species, 32 genera and 16 families. The allochthonous portion dominates a flora with senescent individuals (Terminalia mantaly, Millettia laurentii, Pithecellobium dulce, Albizia lebbeck) and of dbh ≥ 70 cm. Despite a dominance of Fabaceae and Combretaceae, the biodiversity indices reveal a low degree of diversification whose equitability of taxa supports floristic similarity between boroughs. In terms of concerns, while there is unanimity about the ecosystem goods and services derived from avenue trees, the choice of taxa reveals divergences correlated with socio-professional categories. Finally, the poor practice of street trees in urban development gives a negative opinion of this stand with regard to the disservices caused to roads and structures. The roles and functions of the tree being recognized by all, the increase of the woody cover based on local species is desired in order to serve as a reservoir of biodiversity and fulfill the educational action, while underpinning the satisfaction of the daily needs of the populations.
Abstract: The study of the floristic diversity of street trees and the concerns of the population is conducted in Brazzaville. The theme is oriented on the place and the interest of the trees of alignment in the urban development. The methodology is based on the systematic counting of woody trees with a diameter at breast height (dbh) ≥ 10 cm, of 32 arteries...
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Growth and Yield Response of Hot Pepper (Capsicum annum L.) to Different Rate of NPS Blended Fertilizer and Cattle Manure at Bako, West Oromia, Ethiopia
Issue:
Volume 12, Issue 3, June 2023
Pages:
79-85
Received:
8 December 2022
Accepted:
29 March 2023
Published:
20 June 2023
Abstract: Hot Pepper (Capsicum annum L.) is one of economically important horticultural crops in Ethiopia. However, the productivity of the crop is low at national as well as regional levels which, constrained mainly by low soil fertility. A new blended fertilizer (NPS) containing nitrogen (19% N), phosphorous (38% P2O5) and sulfur (7% S) is recently introduced aiming at substituting DAP in Ethiopian agriculture. There is a need to optimize the fertilizer under farmers’ conditions particularly its use along with organic resources. The experiment was conducted at Bako Agricultural Research Center, Oromia, Ethiopia during main cropping season. The objective of this study was to determining the optimum rates of NPS blended fertilizer and cattle manure (CM) on growth, yield and yield response and to investigate the interaction effect of NPS blended fertilizer and cattle manure application and their economic feasibility on hot pepper variety (Bako local) production. The treatments consisted of four NPS blended fertilizer levels (0, 50, 100 and 150 kg ha-1) and three Cattle Manure levels (0, 3.75, and 7.5 t ha-1). The experiment was laid out as a Randomized Complete Block Design and replicated three times. The results showed that the interaction effects of NPS blended fertilizer and cattle manure rates significantly influenced hot pepper growth, yield, and yield component parameters. The maximum marketable dry pod yield (2.94 t ha-1) was obtained from the combined application of 150 NPS Kg ha-1 and 3.75 t ha-1 CM. Therefore, it can be concluded that the combination of these treatments gives a better yield and yield components of hot pepper in the study area.
Abstract: Hot Pepper (Capsicum annum L.) is one of economically important horticultural crops in Ethiopia. However, the productivity of the crop is low at national as well as regional levels which, constrained mainly by low soil fertility. A new blended fertilizer (NPS) containing nitrogen (19% N), phosphorous (38% P2O5) and sulfur (7% S) is recently introdu...
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Optimizing Nitrogen Fertilizer Rates for Wheat (Triticum aestivum L.) in Different Soils of Ethiopia: A Review
Issue:
Volume 12, Issue 3, June 2023
Pages:
86-90
Received:
3 May 2023
Accepted:
7 June 2023
Published:
20 June 2023
Abstract: Wheat is the main staple crop in terms of both production and consumption in Ethiopia. Despite the long history of wheat cultivation and its importance to Ethiopian agriculture, its average yield is still very low. As a result, the objective of this review was to review the effects of different nitrogen fertilizer rates on wheat production in different soil types in Ethiopia. In general, a number of research findings have exposed that the application of various nitrogen fertilizer rates significantly affects different characteristics of growth, yield, and yield-related characteristics of wheat crops. In accordance with this, the review showed that growth, yield, and yield parameters of wheat crops increased with increasing rates of nitrogen fertilizer. Moreover, the review revealed that application of nitrogen fertilizer at rates ranging from 23 kg N ha-1 to 360 kg N ha-1 gave the highest plant height, spike length, number of seeds per plant, and thousand Kernel weight, straw, and above-ground biomass and grain yield of wheat based on soil types and agroecology of the country. This review suggested that the response of the wheat crop to nitrogen fertilizer is not the same rate as that of other nitrogen fertilizers. Therefore, it is crucial to understand the nutritional status of the soil and plant nutrient uptake prior to applying fertilizer. In addition, different plant species and genotypes have different capacities for absorbing water, absorbing nutrients, and responding to stress. It concluded that the application of an appropriate amount of nitrogen fertilizer can be regarded as the main means to increase grain yield, improve uptake of nitrogen and the utilization effectiveness of wheat, reduce farmer costs, and reduce environmental contamination.
Abstract: Wheat is the main staple crop in terms of both production and consumption in Ethiopia. Despite the long history of wheat cultivation and its importance to Ethiopian agriculture, its average yield is still very low. As a result, the objective of this review was to review the effects of different nitrogen fertilizer rates on wheat production in diffe...
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Review of Medicinal Plants Used for the Treatment of Eye Disease in Ethiopia: Implication for Conservation and Sustainable Use
Issue:
Volume 12, Issue 3, June 2023
Pages:
91-98
Received:
14 January 2023
Accepted:
5 June 2023
Published:
27 June 2023
Abstract: World flora serves for a living organism as a source of different uses such as for shelter, medicine food and so on. People in a different part of the globe used plant remedy to cure different illnesses such as eye sicknesses from the time memorial. A review proposed to identify medicinal plants conventionally used to cure eye infection cure implied for conservation and sustainable use was carried out. Different resource materials such as, Books, journals, online available materials, reports and other relevant published and unpublished documents were used to organize this review. 23 medicinal plants conventionally used for the treatment of eye health problem were methodologically reviewed from Ethiopia studied at different times and places. Accordingly, Lamiaceae, Solanaceae, Euphorbiaceae and Fabaceae were the leading family medicinally used for the treatment of eye disease by the local people in Ethiopia. Oral and dermal route of application were the dominant application and crushing was the principal method of traditional medicinal plant preparation for eye disease. The remedy for eye infection cure is prepared from a lone plant and or other ingredients. The most frequently used plant parts for the preparation of remedies were leaf and root. Herbs, shrubs and trees are used for eye disease treatment in their decreasing order respectively. The flora of Ethiopia is rich enough as a source of traditional therapeutic preparation intended to the treatment of disease such as eye defect. This calls for a practical measure of conservation method for sustainability use and modern medicinal extraction.
Abstract: World flora serves for a living organism as a source of different uses such as for shelter, medicine food and so on. People in a different part of the globe used plant remedy to cure different illnesses such as eye sicknesses from the time memorial. A review proposed to identify medicinal plants conventionally used to cure eye infection cure implie...
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